//
//  Atom.m
//  FirstClass
//
//  Created by mac on 16-4-5.
//  Copyright (c) 2016年 liuchengming. All rights reserved.
//

#import "Atom.h"

@implementation Atom
-(id) init
{
    if((self = [super init]))
    {
        _chemicalElement =@"None";
    }
    return self;
}

-(NSUInteger) massNumber
{
    return 0;
}

@end
